> Why?, opening the table should not be a problem

Ooooh!
It's a big problem in VFP. When I opening a table VFP reads all data from the table to memory for some reasons. If I have a 100,000 records (small number for normal DB) it's becomes a problem in VFP.


> how can you write to a file without opening it?

I did not tell "without opening". I told "without reading data back".